DECLARE @source geography --= 'POINT(39.059400200000006,-95.73034969999999)'
DECLARE @target geography --= 'POINT(38.9734886,-95.2509269)'

SELECT @source.STDistance(@target)


set @source = geography::Point(39.059400200000006,-95.73034969999999, 4326)
set @target = geography::Point(38.9734886,-95.2509269, 4326)

select @source
select @target


SELECT @source.STDistance(@target) * 0.00062137





http://stackoverflow.com/questions/13026675/calculating-distance-between-two-points-latitude-longitude
http://www.sql-server-helper.com/sql-server-2008/convert-latitude-longitude-to-geography-point.aspx